1.

How many moles of solute are required in 300 g solvent to prepare 3 molal solution ?

Answer»

0.01
1
0.09
0.9

Solution :`=("weight of solute (GM)")/("molecular mass " xx "WT. of solvent in kg")`
` 3 = ("MOLE")/("weight of solvent")`
`= ("MALE")/(0.300)`
Mole `= 3 xx 0.3 = 0.9`


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